/Engine/Source/Runtime/Engine/Classes/Kismet/GameplayStatics.h
This will always return false if there is no audio device, or the audio device is disabled.
true if we've successfully found a listener within MaximumRange of Location, otherwise false.
static bool GetClosestListenerLocation ( const [UObject](API\Runtime\CoreUObject\UObject\UObject) * WorldContextObject, const FVector & Location, float MaximumRange, const bool bAllowAttenuationOverride, FVector & ListenerPosition )